CN211137993U - Low-pressure double-layer injection mold for automobile stand column - Google Patents

Abstract

The utility model provides a double-deck injection mould of car stand low pressure belongs to mould technical field. It includes double-deck mould, and double-deck mould bottom is equipped with two central line symmetries along double-deck mould and sets up and be used for constituteing the profiled surface of a profiled cavity, double-deck mould in still be equipped with a plurality of root tip portions and run through the profiled surface and insert the pipe of moulding plastics to a profiled cavity, double-deck mould in still be equipped with No. two profiled cavities that set up with a profiled cavity level, still be equipped with the spread groove with the profiled surface one-to-one between a profiled cavity and No. two profiled cavities. Parallel arrangement has one number one to become die cavity and No. two to become the die cavity in the double-deck mould, can improve the efficiency of moulding plastics of product when moulding plastics two different parts on the one shot forming car stand, and one number one becomes die cavity and No. two to become the die cavity and passes through the spread groove intercommunication each other, can make things convenient for the liquid of moulding plastics in No. two shaping chambeies to flow into one number one and become the die cavity.

Description

Low-pressure double-layer injection mold for automobile stand column

Technical Field

The utility model belongs to the technical field of the mould, a double-deck injection mould of car stand low pressure is related to.

Background

An injection mold is a tool for producing plastic products; the injection mold in the traditional technology can only be used for injection molding of one product, and when a certain product needs to be assembled by a plurality of parts, a plurality of molds need to be prepared, so that the cost is greatly increased.

In order to overcome the defects of the prior art, people continuously explore and propose various solutions, for example, a chinese patent discloses an injection mold [ application number: 201910374262.7], comprising a first slide mechanism, which comprises a first slide seat and a first inclined guide post for driving the first slide seat to slide, wherein the first slide seat is provided with a first shaping groove and a first chute which is arranged towards the first shaping groove and communicated with the first shaping groove; the second slide mechanism comprises a second slide seat and a second inclined guide post for driving the second slide seat to slide, a second forming groove which forms an accommodating cavity with the first forming groove is formed in the second slide seat, and the accommodating cavity is used for accommodating the forming part of the rear mold core; the third displacement mechanism comprises a third displacement seat which is slidably arranged in the first sliding chute and a first inclined guide piece which drives the third displacement seat to slide, and a third forming part is arranged at one end, facing the accommodating cavity, of the third displacement seat; the first row position mechanism and the third row position mechanism form a row position unit. The scheme has the advantages that the molding and demolding can be carried out on the back-off of the injection molding product in different directions, different position heights and different structures through one slide unit, but the defect that various products cannot be injected is also existed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem, a double-deck injection mould of car stand low pressure is provided.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

the utility model provides a double-deck injection mould of car stand low pressure, includes double-deck mould, double-deck mould bottom is equipped with two central line symmetries along double-deck mould and sets up and be used for constituteing the profiled surface in a profiled cavity, double-deck mould in still be equipped with a plurality of root end portion and run through the profiled surface and insert the pipe of moulding plastics to a profiled cavity, double-deck mould in still be equipped with No. two profiled cavities that set up with a profiled cavity level, still be equipped with the spread groove with the profiled surface one-to-one between a profiled cavity and No. two profiled cavities.

In the double-layer injection mold for the low pressure of the automobile stand column, the double-layer mold comprises a rear mold and a front mold, the rear mold and the front mold jointly form a second molding cavity, the molding surface is positioned on the front mold, the connecting groove is positioned at the end part of the molding surface and penetrates through the front mold and is communicated with the second molding cavity.

In the automobile stand column low-pressure double-layer injection mold, the connecting groove is internally and movably connected with the front core mold, the bottom of the front core mold is inserted into the second forming cavity, the bottom of the front core mold is matched with the second forming cavity, and the top of the front core mold is inserted into the first forming cavity and matched with the first forming cavity.

In the automobile stand column low-pressure double-layer injection mold, the front core mold is also internally provided with a pouring runner, the top of the pouring runner is connected with the first forming cavity, and the bottom of the pouring runner is connected with the second forming cavity.

In the automobile stand column low-pressure double-layer injection mold, the rear mold is also provided with two rear core molds which correspond to the second molding cavities one by one, the rear core molds are movably connected with the rear mold, and the end parts of the rear core molds are inserted into the second molding cavities and are matched with the second molding cavities.

In the automobile stand column low-pressure double-layer injection mold, a separation groove is formed between the two molding surfaces, a plurality of connecting blocks are arranged in the separation groove along the axial direction of the central line of the separation groove, the end part of an injection molding pipe penetrates through the rear mold and the front mold and is inserted into the first molding cavity, the injection molding pipes are distributed on two sides of the separation groove, and the injection molding pipes are symmetrically arranged along the central line of the separation groove.

In the double-deck injection mould of foretell car stand low pressure, the back mould is kept away from front mould one side and still is equipped with the roof, still is equipped with the injection molding board between roof and the back mould, is equipped with the flow distribution plate in the injection molding board, and the flow distribution plate links to each other with the pipe of moulding plastics, still is equipped with the mouth of moulding plastics on the roof, and the mouth bottom of moulding plastics links to each other with the flow distribution plate.

In the automobile stand column low-pressure double-layer injection mold, the side walls of the double-layer mold corresponding to the two second forming cavities are also provided with exhaust assemblies, the exhaust assemblies are movably connected with the double-layer mold, and the exhaust assemblies are connected with the second forming cavities.

In foretell double-deck injection mould of car stand low pressure, the exhaust subassembly is including setting up the air discharge duct on double-deck mould lateral wall, and air discharge duct partly is located the front mould and another part is located the back mould, and swing joint has the exhaust block in the air discharge duct, and the cooperation is hugged closely with the air discharge duct inner wall to the lateral wall of exhaust block, and the air discharge duct bottom is equipped with the air discharge channel with No. two shaping chambeies intercommunication, and the air discharge channel keeps away from No. two shaping chamber one end and even has the blast pipe.

In foretell double-deck injection mould of car stand low pressure, a shaping chamber keep away from front mould one side and be equipped with a plurality of kicking block, the kicking block is close to a shaping chamber one end and matches with a shaping chamber and suits, the kicking block is kept away from a shaping chamber and is served and be equipped with the adapter sleeve, double-deck mould and two corresponding lateral walls in No. two shaping chambers on still be equipped with the fixed plate, the fixed plate respectively with injection molding plate, back mould and front mould fixed connection, and the fixed plate is kept away from injection molding plate one end and is worn out the front mould.

Compared with the prior art, the utility model has the advantages of:

1. parallel arrangement has one number one to become die cavity and No. two to become the die cavity in the double-deck mould, can improve the efficiency of moulding plastics of product when moulding plastics two different parts on the one shot forming car stand, and one number one becomes die cavity and No. two to become the die cavity and passes through the spread groove intercommunication each other, can make things convenient for the liquid of moulding plastics in No. two shaping chambeies to flow into one number one and become the die cavity.

2. The front core mold is inserted into the second forming cavity from the bottom and is matched with one side of the front mold close to the rear mold to form a forming surface of the second forming cavity, the top of the front core mold and the front mold are away from one side of the rear mold to form the forming surface, the front core mold can be matched with the two forming cavities to be used, the practicability of the front core mold is improved, the cost of the mold can be reduced, and the front core mold and the connecting groove are movably connected to facilitate the disassembly, cleaning and replacement of the front core mold.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic diagram of the overall structure provided by the present invention;

FIG. 2 is a schematic view of the interior of an injection molded plate;

FIG. 3 is a schematic structural view of a rear mold;

fig. 4 is a schematic cross-sectional view of the present invention;

fig. 5 is a schematic view of the structure of the molding surface.

In the figure, a double-layer mold 1, a molding surface 2, a second molding cavity 3, a connecting groove 4, a front mold 5, a rear mold 6, an injection molding pipe 7, a front core mold 8, a pouring runner 9, a rear core mold 10, a separating groove 11, a top plate 12, an injection molding plate 13, a flow distribution plate 14, an injection molding opening 15, an exhaust assembly 16, an exhaust groove 17, an exhaust block 18, an exhaust runner 19, an exhaust pipe 20, a top block 21, a connecting sleeve 22, a connecting block 23, a fixing plate 24 and a first molding cavity 100.

Detailed Description

As shown in fig. 4 and 5, the automobile column low-pressure double-layer injection mold comprises a double-layer mold 1, wherein two molding surfaces 2 which are symmetrically arranged along the central line of the double-layer mold 1 and are used for forming a first molding cavity 100 are arranged at the bottom of the double-layer mold 1, a plurality of injection molding pipes 7 which are arranged in the double-layer mold 1 and have end parts penetrating through the molding surfaces 2 and being inserted into the first molding cavity 100 are further arranged in the double-layer mold 1, a second molding cavity 3 which is horizontally arranged with the first molding cavity 100 is further arranged in the double-layer mold 1, and connecting grooves 4 which are in one-to-one correspondence with the molding surfaces 2 are further arranged between the first molding cavity 100 and the second molding cavity.

In this embodiment, the parallel is provided with one number of one molding cavity 100 and No. two molding cavities 3 in double-deck mould 1, can improve the efficiency of moulding plastics of product when moulding plastics two different parts on the one shot forming car stand, and one number of molding cavities 100 and No. two molding cavities 3 communicate each other through spread groove 4, can make things convenient for the liquid of moulding plastics in No. two molding cavities 3 to flow into No. one molding cavity 100.

Double-deck mould 1 includes back mould 6 and front mould 5, and front mould 5 and the combination of back mould 6 form No. two molding cavity 3, molding surface 2 be located front mould 5, spread groove 4 is located molding surface 2 tip and spread groove 4 and runs through front mould 5 and communicate with No. two molding cavity 3.

In this embodiment, as shown in fig. 4 and 5, the double-layer mold 1 is formed by combining the front mold 5 and the rear mold 6, and when demolding, the product in the first molding cavity 100 is taken out first, and then the product in the second molding cavity 3 is taken out.

A front core mold 8 is movably connected in the connecting groove 4, the bottom of the front core mold 8 is inserted into the second forming cavity 3, the bottom of the front core mold 8 is matched with the second forming cavity 3, and the top of the front core mold 8 is inserted into the first forming cavity 100 and is matched with the first forming cavity 100.

In this embodiment, as shown in fig. 5, the bottom of the front core mold 8 is inserted into the second forming cavity 3 and cooperates with the front mold 5 near the rear mold 6 to form a forming surface of the second forming cavity 3, and the top of the front core mold 8 cooperates with the front mold 5 far from the rear mold 6 to form a forming surface 2, so that the front core mold 8 can cooperate with the two forming cavities simultaneously, which improves the practicability of the front core mold 8 and reduces the cost of the mold, and the front core mold 8 and the connecting groove 4 are movably connected to facilitate the disassembly, cleaning and replacement of the front core mold 8.

The front core mold 8 is also internally provided with a pouring runner 9, the top of the pouring runner 9 is connected with the first molding cavity 100, and the bottom of the pouring runner 9 is connected with the second molding cavity 3. In this embodiment, as shown in fig. 5, the pouring runner 9 in the front core mold 8 can also introduce the injection molding liquid in the first molding cavity 100 into the second molding cavity 3.

The rear die 6 is also provided with two rear core dies 10 which are in one-to-one correspondence with the second forming cavities 3, the rear core dies 10 are movably connected with the rear die 6, and the end parts of the rear core dies 10 are inserted into the second forming cavities 3 and are matched with the second forming cavities 3.

In this embodiment, as shown in fig. 3, the end of the rear core mold 10 is inserted into the second forming cavity 3 and is matched with the second forming cavity 3 to form a forming surface of the second forming cavity 3 by matching with the side of the rear mold 6 close to the front mold 5, and the movable connection between the rear core mold 10 and the rear mold 6 can facilitate the disassembly, cleaning and replacement of the rear core mold 10, thereby reducing the maintenance cost.

A separation groove 11 is arranged between the two molding surfaces 2, a plurality of connecting blocks 23 axially arranged along the central line of the separation groove 11 are arranged in the separation groove 11, the end part of the injection molding pipe 7 penetrates through the rear mold 6 and the front mold 5 and is inserted into the first molding cavity 100, the injection molding pipes 7 are distributed on two sides of the separation groove 11, and the injection molding pipes 7 are symmetrically arranged along the central line of the separation groove 11.

In this embodiment, as shown in fig. 5, the separation groove 11 can be matched with a lower template (not shown in the figure) to separate two first molding cavities 100, so as to prevent the first molding cavities 100 from leaking, the connecting block 23 in the separation groove 11 can limit the double-layer mold 1 and the lower template when the molds are closed, and the injection molding pipes 7 are distributed on two sides of the separation groove 11 and can respectively inject two first molding cavities 100.

The rear mould 6 is far away from 5 one sides of front mould and still is equipped with roof 12, still is equipped with injection molding plate 13 between roof 12 and the rear mould 6, is equipped with flow distribution plate 14 in the injection molding plate 13, and flow distribution plate 14 links to each other with injection molding pipe 7, still is equipped with on the roof 12 and moulds plastics mouthful 15, and the mouth 15 bottom of moulding plastics links to each other with flow distribution plate 14.

In this embodiment, as shown in fig. 1, fig. 2 and fig. 4, the injection port 15 is externally connected to a compression molding machine, and the compression molding machine can inject the injection molding liquid into the diversion plate 14 through the injection port 15, and then the injection molding liquid is uniformly injected into the first molding cavity 100 through the diversion of the diversion plate 14 through the plurality of injection molding pipes 7.

The side walls of the double-layer die 1 corresponding to the two second forming cavities 3 are also provided with an exhaust assembly 16, the exhaust assembly 16 is movably connected with the double-layer die 1, and the exhaust assembly 16 is connected with the second forming cavities 3.

In this embodiment, as shown in fig. 4, the exhaust assembly 16 can rapidly exhaust air in the second molding cavity 3 during injection molding, so as to prevent the mold from being damaged due to too large pressure in the mold caused by untimely exhaust of air in the second molding cavity 3, and the exhaust assembly 16 is movably connected with the double-layer mold 1, so that the exhaust assembly 16 can be conveniently detached, cleaned and replaced.

Exhaust assembly 16 is including setting up exhaust duct 17 on double-deck mould 1 lateral wall, and exhaust duct 17 partly is located front mould 5 and another part is located back mould 6, and swing joint has exhaust block 18 in the exhaust duct 17, and exhaust block 18's lateral wall and exhaust duct 17 inner wall hug closely the cooperation, and exhaust duct 17 bottom is equipped with the exhaust runner 19 with No. two shaping chambeies 3 intercommunication, and exhaust runner 19 keeps away from No. two shaping chambeies 3 one end and even has blast pipe 20.

In this embodiment, as shown in fig. 4, when injection molding is performed in the second molding cavity 3, gas in the second molding cavity 3 can be discharged sequentially through the exhaust groove 17, the exhaust flow channel 19 and the exhaust pipe 20, so that damage to the mold due to excessive pressure inside the mold caused by untimely discharge of the gas in the second molding cavity 3 can be prevented.

No. one the one side of front mould 5 is kept away from to become die cavity 100 is equipped with a plurality of kicking block 21, and kicking block 21 is close to one the one end of becoming die cavity 100 and is matchd with one become die cavity 100 and fit, and kicking block 21 is kept away from one and is served and be equipped with adapter sleeve 22 in becoming die cavity 100, double-deck mould 1 and two No. 3 corresponding lateral walls of becoming die cavity on still be equipped with fixed plate 24, fixed plate 24 respectively with injection molding plate 13, back mould 6 and front mould 5 fixed connection, and fixed plate 24 keeps away from injection molding plate 13 one end and wears out front mould 5.

In this embodiment, as shown in fig. 1 and 5, the ejector block 21 can increase a contact area between a product and an ejector rod (not shown in the figure), when the product is demolded, the surface of the product is broken, so that the surface quality of the product is deteriorated, the fixing plate 24 is fixedly connected to the injection molding plate 13, the rear mold 6 and the front mold 5, and one end of the fixing plate 24, far from the injection molding plate 13, penetrates through the front mold 5 and is fixedly connected to the lower mold plate.

The working principle of the utility model is, the external compression molding machine of mouth of moulding plastics 15, the compression molding machine can be through mouth of moulding plastics 15 with the injection moulding liquid inject flow distribution plate 14 in, the reposition of redundant personnel of flow distribution plate 14 will the injection moulding liquid through a plurality of injection moulding pipe 7 evenly inject into one number of shaping chamber 100, a plurality of injection moulding pipe 7 are moulded plastics simultaneously and can be improved injection efficiency, the injection moulding liquid that injects into one number of shaping chamber 100 can be through advance on the preceding mandrel 8 in runner 9 inflow two number of shaping chamber 3, two different parts on the one shot forming car stand, improve the injection efficiency of product, injection moulding liquid flows into behind No. two shaping chamber 3, gas in No. two shaping chamber 3 can loop through air discharge duct 17, air discharge duct 19 and blast pipe 20 discharge, thereby can prevent that No. two shaping chamber 3 air discharge from untimely leading to the too big die damage that leads to the mould internal pressure often, 8 bottoms of preceding mandrel insert in No. two number of shaping chamber 3 and be close to the shaping face that 6 one side cooperation formed No. two numbers of back shaping chamber 3 Simultaneously, 8 tops of preceding mandrel and front mould 5 keep away from back mould 6 one side cooperation formation shaping face 2, preceding mandrel 8 can cooperate two shaping chambeies to use simultaneously, the practicality of preceding mandrel 8 has been improved, and can reduce the cost of mould, preceding mandrel 8 can make things convenient for the dismantlement of preceding mandrel 8 to wash and change with spread groove 4 swing joint, 8 bottoms of preceding mandrel insert in No. two shaping chambeies 3 and be close to the shaping face that back mould 6 one side cooperation formed No. two shaping chambeies 3 with front mould 5, 8 tops of preceding mandrel and front mould 5 keep away from back mould 6 one side cooperation formation shaping face 2 simultaneously, preceding mandrel 8 can cooperate two shaping chambeies to use simultaneously, the practicality of preceding mandrel 8 has been improved, and can reduce the cost of mould, preceding mandrel 8 can make things convenient for the dismantlement of preceding mandrel 8 to wash and change with spread groove 4 swing joint.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although terms such as the double-layer mold 1, the molding surface 2, the second molding cavity 3, the connecting groove 4, the front mold 5, the rear mold 6, the injection molding pipe 7, the front core mold 8, the pouring runner 9, the rear core mold 10, the separating groove 11, the top plate 12, the injection molding plate 13, the flow dividing plate 14, the injection molding opening 15, the exhaust assembly 16, the exhaust groove 17, the exhaust block 18, the exhaust runner 19, the exhaust pipe 20, the top block 21, the connecting sleeve 22, the connecting block 23, the fixing plate 24, the first molding cavity 100 and the like are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.

Claims (10)

1. The utility model provides a double-deck injection mould of car stand low pressure, includes double-deck mould (1), its characterized in that, double-deck mould (1) bottom is equipped with two central line symmetries along double-deck mould (1) and sets up and be used for constituteing one shaping face (2) of chamber (100), double-deck mould (1) in still be equipped with a plurality of root ends portion and run through shaping face (2) and insert injection pipe (7) to one in shaping chamber (100), double-deck mould (1) in still be equipped with No. two shaping chamber (3) that set up with one shaping chamber (100) level, still be equipped with between one shaping chamber (100) and No. two shaping chamber (3) spread groove (4) with shaping face (2) one-to-one.

2. The automobile pillar low-pressure double-layer injection mold according to claim 1, characterized in that the double-layer mold (1) comprises a rear mold (6) and a front mold (5), the rear mold (6) and the front mold (5) are combined to form a second molding cavity (3), the molding surface (2) is positioned on the front mold (5), the connecting groove (4) is positioned at the end part of the molding surface (2), and the connecting groove (4) penetrates through the front mold (5) and is communicated with the second molding cavity (3).

3. The automobile pillar low-pressure double-layer injection mold according to claim 2, characterized in that a front core mold (8) is movably connected in the connecting groove (4), the bottom of the front core mold (8) is inserted into the second molding cavity (3) and the bottom of the front core mold (8) is matched with the second molding cavity (3), and the top of the front core mold (8) is inserted into the first molding cavity (100) and matched with the first molding cavity (100).

4. The low-pressure double-layer injection mold for the automobile stand column according to claim 3, characterized in that a pouring runner (9) is further arranged in the front core mold (8), the top of the pouring runner (9) is connected with the first forming cavity (100), and the bottom of the pouring runner (9) is connected with the second forming cavity (3).

5. The automobile pillar low-pressure double-layer injection mold according to claim 2, characterized in that the rear mold (6) is further provided with two rear core molds (10) which correspond to the second molding cavity (3) one by one, the rear core molds (10) are movably connected with the rear mold (6), and the end parts of the rear core molds (10) are inserted into the second molding cavity (3) and are matched with the second molding cavity (3).

6. The automobile pillar low-pressure double-layer injection mold according to claim 2, characterized in that a separation groove (11) is formed between the two molding surfaces (2), a plurality of connecting blocks (23) are arranged in the separation groove (11) along the central line of the separation groove (11) in the axial direction, the end part of the injection molding pipe (7) penetrates through the rear mold (6) and the front mold (5) and is inserted into the first molding cavity (100), the injection molding pipes (7) are distributed on two sides of the separation groove (11), and the injection molding pipes (7) are symmetrically arranged along the central line of the separation groove (11).

7. The automobile pillar low-pressure double-layer injection mold according to claim 6, characterized in that a top plate (12) is further arranged on one side of the rear mold (6) far away from the front mold (5), an injection molding plate (13) is further arranged between the top plate (12) and the rear mold (6), a splitter plate (14) is arranged in the injection molding plate (13), the splitter plate (14) is connected with the injection molding pipe (7), an injection molding opening (15) is further arranged on the top plate (12), and the bottom of the injection molding opening (15) is connected with the splitter plate (14).

8. The automobile pillar low-pressure double-layer injection mold according to claim 2, characterized in that the side walls of the double-layer mold (1) corresponding to the two molding cavities (3) are further provided with an exhaust assembly (16), the exhaust assembly (16) is movably connected with the double-layer mold (1), and the exhaust assembly (16) is connected with the molding cavities (3).

9. The automobile column low-pressure double-layer injection mold as claimed in claim 8, wherein the exhaust assembly (16) comprises an exhaust groove (17) arranged on the side wall of the double-layer mold (1), one part of the exhaust groove (17) is arranged on the front mold (5) and the other part of the exhaust groove is arranged on the rear mold (6), an exhaust block (18) is movably connected in the exhaust groove (17), the side wall of the exhaust block (18) is in close fit with the inner wall of the exhaust groove (17), an exhaust runner (19) communicated with the second molding cavity (3) is arranged at the bottom of the exhaust groove (17), and an exhaust pipe (20) is connected to one end, away from the second molding cavity (3), of the exhaust runner (19).

10. The automobile column low-pressure double-layer injection mold as claimed in claim 2, wherein a plurality of ejector blocks (21) are arranged on one side, away from the front mold (5), of the first molding cavity (100), one end, close to the first molding cavity (100), of each ejector block (21) is matched with the first molding cavity (100), one end, away from the first molding cavity (100), of each ejector block (21) is provided with a connecting sleeve (22), the side walls, corresponding to the two second molding cavities (3), of the double-layer mold (1) are further provided with fixing plates (24), the fixing plates (24) are fixedly connected with the injection molding plate (13), the rear mold (6) and the front mold (5) respectively, and one end, away from the injection molding plate (13), of each fixing plate (24) penetrates out of the front mold (5).

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